diff options
Diffstat (limited to 'mdk-stage1/dietlibc/lib/atol.c')
-rw-r--r-- | mdk-stage1/dietlibc/lib/atol.c | 25 |
1 files changed, 20 insertions, 5 deletions
diff --git a/mdk-stage1/dietlibc/lib/atol.c b/mdk-stage1/dietlibc/lib/atol.c index 558a004b9..5961a1881 100644 --- a/mdk-stage1/dietlibc/lib/atol.c +++ b/mdk-stage1/dietlibc/lib/atol.c @@ -1,8 +1,23 @@ +#include <endian.h> +#include <ctype.h> +#include <stdlib.h> + long int atol(const char* s) { long int v=0; - int sign=1; - if (*s=='-') { sign=-1; ++s; } else if (*s=='+') ++s; - while (*s && (*s>='0') && (*s<='9')) - v=v*10+*s++-'0'; - return v*sign; + int sign=0; + while ( *s == ' ' || (unsigned int)(*s - 9) < 5u) ++s; + switch (*s) { + case '-': sign=-1; + case '+': ++s; + } + while ((unsigned int) (*s - '0') < 10u) { + v=v*10+*s-'0'; ++s; + } + return sign?-v:v; } + +#if __WORDSIZE == 64 +long long int atoll(const char* s) __attribute__((alias("atol"))); +#else +int atoi(const char* s) __attribute__((alias("atol"))); +#endif |